Certain mods will error when you try to open their page on the modrinth app, and if one of these mods are installed on a instance it will show a huge error across your screen (check image 1) and you wont be able to see or change the mods list (unless you do it manually by opening the folder).
After updating the app (0.13.24) it will now just show a blank screen when opening the instance (check image 2), this makes it straight up impossible to change the settings and mods still have to be added manually. Playing does work but must be done from the library tab.
Reinstalling the app did not fix this